I could greet you could greet she could greet we could greet you could greet they could greet
Forma con V-ing
I could be greeting you could be greeting she could be greeting we could be greeting you could be greeting they could be greeting
Perfecto
I could have greeted you could have greeted she could have greeted we could have greeted you could have greeted they could have greeted
Perfecto con V-ing
I could have been greeting you could have been greeting she could have been greeting we could have been greeting you could have been greeting they could have been greeting
Negación
Forma simple
I couldn't greet you couldn't greet she couldn't greet we couldn't greet you couldn't greet they couldn't greet
Forma con V-ing
I couldn't be greeting you couldn't be greeting she couldn't be greeting we couldn't be greeting you couldn't be greeting they couldn't be greeting
Perfecto
I couldn't have greeted you couldn't have greeted she couldn't have greeted we couldn't have greeted you couldn't have greeted they couldn't have greeted
Perfecto con V-ing
I couldn't have been greeting you couldn't have been greeting she couldn't have been greeting we couldn't have been greeting you couldn't have been greeting they couldn't have been greeting
Forma interrogativa
Forma simple
could I greet? could you greet? could she greet? could we greet? could you greet? could they greet?
Forma con V-ing
could I be greeting? could you be greeting? could she be greeting? could we be greeting? could you be greeting? could they be greeting?
Perfecto
could I have greeted? could you have greeted? could she have greeted? could we have greeted? could you have greeted? could they have greeted?
Perfecto con V-ing
could I have been greeting? could you have been greeting? could she have been greeting? could we have been greeting? could you have been greeting? could they have been greeting?
Forma interro-negativa
Forma simple
couldn't I greet? couldn't you greet? couldn't she greet? couldn't we greet? couldn't you greet? couldn't they greet?
Forma con V-ing
couldn't I be greeting? couldn't you be greeting? couldn't she be greeting? couldn't we be greeting? couldn't you be greeting? couldn't they be greeting?
Perfecto
couldn't I have greeted? couldn't you have greeted? couldn't she have greeted? couldn't we have greeted? couldn't you have greeted? couldn't they have greeted?
Perfecto con V-ing
couldn't I have been greeting? couldn't you have been greeting? couldn't she have been greeting? couldn't we have been greeting? couldn't you have been greeting? couldn't they have been greeting?